%0 Journal Article %A MichaƂ Przykucki %A Thomas Shelton %T Smallest percolating sets in bootstrap percolation on grids %J The electronic journal of combinatorics %D 2020 %V 27 %N 4 %U http://geodesic.mathdoc.fr/articles/10.37236/9582/ %R 10.37236/9582 %F 10_37236_9582